BYT DSI Dual Link Support
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- v1 Latest3 patches 11 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/3 | drm/i915/dsi: clean up MIPI DSI pipe vs. port usagedrivers/ drivers/ drivers/ +1 more | +277 | 4 replies | |
| 2/3 | drm/i915/dsi: add ports to intel_dsi to describe the ports being drivendrivers/ drivers/ | +8 | 1 reply | |
| 3/3 | drm/i915/dsi: an example how to handle dual link for each portdrivers/ | +12 | 1 reply |
Reviews trailers per patch
2 of 3 patches have a Reviewed-by or Acked-by.
| Patch | PRC QA PRTS (Patch Regression Test System Contact: | Gaurav K Singh |
|---|---|---|
| 1/3 | R-b | |
| 2/3 | R-b | |
| 3/3 | T-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH 0/3] BYT DSI Dual Link Support
Hi Shobhit and Gaurav -
I've been pondering this whole MIPI DSI pipes vs. ports thing and discussing with Ville and others. Rather than try and fail in explaining the ideas, here are some concrete patches to describe what I'd like to be done first.
The most important thing is that we don't confuse the pipes and ports. Getting confused was easy with the pipe B mapping to port C, and the register defines being very confused/confusing about it. These patches attempt to fix that. Before adding dual link support, there's a simple function mapping the pipe to port.
Next up is expanding that to handle multiple ports driven from one pipe. That's handled by adding intel_dsi->ports bitmap that has the bit set for each port that is to be driven. I've added the bitmap and some helpers to iterate over the configured ports, but there's no actual support for doing the configuration. I'm hoping you could take over from here. There's a sample patch about the usage.
I'm sorry it's taken me so long to reply. With the new stuff coming in, I really think it's important to get the foundation right first. Especially because I'm to blame for getting some of the port/pipe stuff confused in the first place...
BR,
Jani.
Jani Nikula (3):
drm/i915/dsi: clean up MIPI DSI pipe vs. port usage drm/i915/dsi: add ports to intel_dsi to describe the ports being
driven
drm/i915/dsi: an example how to handle dual link for each port
drivers/gpu/drm/i915/i915_reg.h | 303 ++++++++++++++++++----------------- drivers/gpu/drm/i915/intel_dsi.c | 151 ++++++++--------- drivers/gpu/drm/i915/intel_dsi.h | 19 +++ drivers/gpu/drm/i915/intel_dsi_cmd.c | 76 ++++----- 4 files changed, 290 insertions(+), 259 deletions(-)
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